Function syncRusenseTabToggle

web/scripts/ragnar_modern.js:1000–1003

()

            if (req) Promise.resolve(req.call(obs)).catch(() => { /* CSS overlay still applies */ });
        } else {
            const exit = document.exitFullscreen || document.webkitExitFullscreen;
            if (exit && (document.fullscreenElement || document.webkitFullscreenElement)) {
                Promise.resolve(exit.call(document)).catch(() => {});
            }
        }
    });
    // Keep the CSS overlay in sync when the user leaves OS fullscreen via Esc.